Funny enough I had the exact same issue on the exact same key, and the cleaning just made it work like new. Then I found this video and saw I'm not alone.

"Save Our Stuff"---Luv the name! Im tired of wasting money on and throwing away products that don't last. I've finally started to learn how to fix them myself. Remember me when you make it bud, right now you have 90 subs lol. Keep doing what youre doing.

Thanks, this video was very useful

Bro how do you all open it so easy? I have plied all sides besides the usb port corner and theres literally no way to make it budge.

Just fixed mine! :)

What was the liquid you used to clean it? Thanks for the walkthrough!!

what are you using for cleaning?